Improvement in heating-stoves



UNITED-STATES ,PATENTA OFFICE. Y

JAMEs HOWARD AND EDWARD- TENNEY EOUsEIELD, OE BEDFORD,

. ENGLAND. Y

IMPROVEMENT IN HARVESTERS. I

Letters Patent No. 71,175, dated November 19, 1867; patented in England November 20, 1866.

To all whom it may concern: Be it known that we, JAMES HOWARD, of Bedford, in the county of Bedford, agricultural engineer, and EDWARD TENNEY BOUS- FIELD, of the same place, engineer, have invented Improvements in the Construction of Reaping and Mowing Machines; and'we do hereby declare that the following is a full and exact description of our said invention.

The object of this invention is to increase the efficiency of reapers and .mowers 5 and to this end our invention relates, first, to an improvement in the arrangement of the mechanism for giving motion to the knife-bar of Ireapers and mowers; and, secondly, to improvements in the construction of the apparatus for delivering the cut crop from the machine; and, thirdly, in giving avariable speed to the reel in its circuit.

In -the accompanying drawings, Figure l shows, in side elevation, a reaping-machine constructed according to our invention. Fig. 2 is a front elevation, and Fig. 3 is a plan view, of the same.

Referring to the first head of our improvements, we would remark that hitherto a difficulty has been experienced in bringing the crank-shaft which works the knife-bar sufliciently near the ground to keep the'rod which connects the crank-shaft and knife-bar, and transmits motion to the latter, in the best position for efficiently delivering the thrust. Now,in order to effect this our first improvement, and at the same time to economize space, we adopt the following arrangement:

a is a shaft, having its bearings in the offside of the framing A, and set radially with respect to the axle of the carrying-wheels B Bit. The'shaft a carries a pinion, b, which gears with the ring of bevel-teeth b on the driving-wheel B of the machine. At its outer end the shaft a is fittedwith a spurwheel, c, which gears into and drives apinion, d, on the crank-shaft e. This shaft e is mounted parallel with the shaft a, and, like it, has its bearings in the side framing A. The two shafts a and c are therefore moimted in the same vertical plane. A rod, f, connects the crank-pin of the shaft e with the knife-bar g, and, the lowest position of the crank-pin being nearly in a line with the knife-bar, a nearly direct thrust will be transmitted through the rod f to the knife-bar. This arrangement also allows of the speed of the knife-bar being altered to suit various crops by simply changing the spur-gearing for wheels and pinions of different relative speeds.

Thesecond head of the invention, which relates, as before stated, to improvements in the apparatus for delivering the cut crop, or sweeping it olf when out, at the side of the machine, has for its main object to increase the efficiency of the raking portion of the reel. fr

The bars h h of the reel are formed of bent arms, supported at one end only, as -is coinmon with reel-bars, by their attached ends being inserted in radial sockets cast with the reel-boss. v i,

is a bar, also iitted with rake-teeth, and supported at one end by a strong radial arm, il, which is capable of turning in its socket. To give great steadiness to this arm, it is prolonged past the center of rotation of the reel, and secured by an extension of the radial socket past that center, and to increase the stiffness of the rake-bar, a stay-rod, ii, is used, to form a second connection between the arm ii" and rake-bar i'. v

Upon the radial arm z" is keyed a miterwheel, k, which gears into a similar but stationary wheel, k', fixed on the frame-work. Through the center of this wheel la passes the shaft l of the reel, and itis supported in bearings at the top of the framing. This shaft l receives rotary motion through a chain-wheel, l', mounted on the shaft, the wheel being driven by an endless chain, m, passing up from a chain-wheel, n, on the axle of the carrying-wheels.

From the above explanation it will be un= derstood that the rake, in being carried round with the other arms of the reel, rotates also in its socket, and it is by this combined movement that the cut crop is swept forward and delivered lat the side of the platform. y Sometimes we dispense with the ordinary reel altogether, and substitute therefor gatherers, made to revolve in the same manner as described for the rake-arm.

In order further to increase the efficiency of the machine, the speed of rotation of the' M. c. HULL.-

Hot-Air Furnace.

Nuo 71,176. A .Patented Nov. 19, 1867.

NJETES. PHOTD-LITHDGRAPNER. WASHINTON. n.6.

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IMPROVEMENT 1N HEATING-Moves.

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TO ALL WHOM IT MAY CONCERN:

-Be it knownA that l', MAURICE C. HULL, of the city and State of New York, have invented and made a certain new and useful Improvement in Heating-Furnaces or Stoves; and I do hereby declare the following to be a full, clear, and exact description ofthe same, reference being had to the annexed drawing, makingpart of this specification, wherein- Figure 1 is a vertical section o f the furnace, and

Figure 2 is a sectional plan of the same at the line x x.

Similar marks of reference denote the same parts.

The object of my 'invention is to furnish a means for producing a perfect combustion of the fuel, and at the same time compel the products of combustion to travel through a considerable distancein the direction that their temperature would naturally induce the air to be heated, passing in contact with an extended surface.

In the drawing, a is the ash-pit, b the grate, e the fire-pot, all of any usual or desired construction. Around the upper end of the fire-pot van annular plate, ci, is employed that stands as a horizontal ange to said tire-pot.

e is a casing around the edge of-this flange, within which is a conical or inclined plate,f, enclosing a ue,g, thatv opens at the back tothe smoke pipe t, From the platef rise the tubular dues/iz', standing vertically, or nearly so, and forming a range over the fue g, into which they open at their'lower ends, and the upper ends terminate as open mouths. I provide the double casing cZwith the annular cover m, forming a cylindrical drum or ascending Hue, n, that opensV below` the casing Z into the iire-chamber c. Tile casing Z is connected by a ring plate, o, to the dome p, within which is the hopper q for fuel, from which the slide or chute 1 passes to a door in a convenient position for supplying fuel. als are air pipes between the plates d and o, opening at their ends through them, and t is a damper operated by a vsuitable'rod that allows a direct draught from the fire to the smoke pipe L, as indicated by the black arrows. .This direct draught is employed in kindling the fire. The furnace or heater may stand `in any room or building for heatingthe same, or it may be enclosed in a brick or sheet-metal casing, and the heated air be passed to the apartments above.. It will now be understood that the fire burns gradually below the hopper g, and that the products of combustion risc in the dome p, and are suiliciently retained topromote a perfect combustion before passing into the cylindrical iue n, in which they ascend and impart their heat to the plates and Z and air circulating in Contact with such plates, and then they fall through the tubes z' t' into the flue g, and pass around said Hue g, to the escape h. This arrangement produces a plenum in the flue n and dome p, and compels the products of combustion to pass up to the top of the iluen, as the tubes z'z'prevent the heat passing directly off bythe draught into the Hue g. The tubes s s, passing through the fire-chamber at a point where they become intensely heated, impart to the air passing through them a high temperature. The'top platef of the Hue g being/inclined, prevents the dust and ashes lodging; hencethefurnace will be kept clean very easily, and the ashes will not accumulate andA obstruct the transmission of heat. By this arrangement the gases as they become partially cooled descend through the pipes z', und pass off by the flue g, which is exposed externally to an ascending current ot' air, and thereby kept cool, so that there is very little loss bythe escape of highly-heated gaseous products of combustion. The ue g may be discontinued at one portion of its circumference, to allow for introducing a chute -or door-frame to give access tothe lire-chamber.

This may be employed in vcases where the supply-hopper is dispensed with.

What I claim, and desire to secure by Letters Patent, is- 1. The ue g, around, or partially around, the outside of the fire-chamber, substantially as set forth. 2. The inclined platef, forming the top of the tlueg, for preventing the lodging of ashes or fuel, as set forth. 3. I claim the pipes t', applied in substantially the manner specified, to cause the products of combustion to ascend toward the top ofthe furnace or stove, and then descend toward the base, for the purpose specified.

4. The ue 'it and pipes z', in combination with the flue g, as and for the purposes set forth.

specified.

In witness whereof I have heren :to set my signature, this third day of August, A. D. 1867.

i M. C. HULL. Witnesses:

Guo. D. Warnungy Cues. H. SMITH..

5. I claim the inclined platef, through which the smokeducs pass, substantially as and for the purposes 

